2022-03-01: ASUS Router Firmware v. 3.0.0.4.45660
I was having issues connecting to SONOS update service and music services eg Spotify, RadioPlayer.
This was the resolution, provided by ASUS Support:
Can you please try to change the following setting:
Go to Router GUI
Wireless > professional
Airtime Fairness > Disable
Then go to Wireless > Smart connect > Disable
Reboot the device and any SONOS system and try again
Kind Regards,
ASUS UK Support team
Email: https://www.asus.com/uk/support/